Vacuum Hose
A collapse-resistant corrugated stainless hose engineered to keep its shape under negative pressure — for vacuum, suction and evacuation lines.
Technical Data
| Nominal size | NW6 – NW300 (and larger, made to order) |
|---|---|
| Core | Annular corrugated stainless steel, high hoop strength |
| Reinforcement | Corrugation profile and/or stainless wire braid |
| Pressure range | Full vacuum up to positive pressure by build |
| Design temperature | Cryogenic to ~600 °C in stainless; higher with special grades |
| Movement | Flexes and absorbs vibration while holding vacuum |
| End fittings | Flanged — ISO-KF / ISO-K / ISO-F / CF |
| Media | Gases, vapours and liquids under suction or vacuum |
Selection Guide
Robust profile without braid — moderate vacuum on smaller bores.
Best forSmaller bores · moderate vacuumCorrugated core plus stainless braid holds full vacuum with external strength.
Best forFull vacuum dutyFixed or loose flanges, threads, nipples, camlock or unions — welded on.
Best forAny connection standardDatasheet & Drawings
Hose assemblies are built to your length and end fittings — a certified approval drawing comes with your quotation.
EN 10204 3.1 material certificates are supplied with your shipment.
Also in This Range
Frequently Asked Questions
What is a vacuum hose?
A vacuum hose is a flexible metal hose built to resist collapse under negative (suction) pressure, keeping its bore open on vacuum, suction and evacuation lines.
How does a vacuum hose avoid collapsing?
Its corrugated stainless core has high hoop strength, and a reinforcing wire braid can be added, so the wall withstands the inward atmospheric load that would crush an ordinary hose.
When is a braid needed on a vacuum hose?
For full vacuum, larger diameters or higher temperatures, where the corrugation profile alone may not resist collapse. TOTFLEX specifies the reinforcement for each duty.
Can a vacuum hose also handle positive pressure?
Yes — a suitably built vacuum hose handles both negative and positive pressure. Tell us both the vacuum level and any positive-pressure duty so we can rate it correctly.
What temperatures can a metal vacuum hose handle?
The stainless construction handles cryogenic temperatures up to roughly 600 °C, and higher with special grades — well beyond the range of rubber or plastic vacuum hose.
Does TOTFLEX test vacuum hoses before delivery?
Yes — vacuum and leak testing, plus NDT and EN 10204 3.1 material certificates, are available on request.
Engineered to order. Delivered worldwide.
Send your duty conditions — size, pressure, temperature, medium and connections — and our engineers return a drawing, material selection and lead time.
Request a quote